LifeFitness F1 Smart

Treadmill Review: The LifeFitness F1 Smart is a folding treadmill with plenty of room for long-legged runners

LIFEFITNESS F1 SMART TREADMILL $2,499

Plus: Folding treadmills get knocked for having decks that feel short, but the F1 SMART provides plenty of room for even the longest-legged runners to lope freely. Your feet will enjoy the platform's soft ride underfoot, which firms up and feels even better at faster paces. Transitions between speeds and inclines are slow but butter-smooth. The on-board iPod dock has hard-to-miss buttons, so you can cycle through songs with ease. After a workout, just press a button to put the treadmill in energy-saver mode, cutting its power use by 90 percent.

Minus: Top speed is 10 mph, so anyone who needs to run sub-six-minute pace should look elsewhere. Bottles rattle in holders.

Tester Says: "I love running to music, and the dock let me do that while also charging my iPod's battery."—DAVID FAUST, 48, a 1:22 half-marathoner from Macungie, Pa.